111549411361 has 4 divisors (see below), whose sum is σ = 116399385792. Its totient is φ = 106699436932.

The previous prime is 111549411277. The next prime is 111549411367. The reversal of 111549411361 is 163114945111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 163114945111 = 2389 ⋅68277499.

It is a cyclic number.

It is not a de Polignac number, because 111549411361 - 2¹¹ = 111549409313 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111549411361.

It is not an unprimeable number, because it can be changed into a prime (111549411367) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424987181 + ... + 2424987226.

It is an arithmetic number, because the mean of its divisors is an integer number (29099846448).

Almost surely, 2^111549411361 is an apocalyptic number.

It is an amenable number.

111549411361 is a deficient number, since it is larger than the sum of its proper divisors (4849974431).

111549411361 is an equidigital number, since it uses as much as digits as its factorization.

111549411361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4849974430.

The product of its digits is 12960, while the sum is 37.

The spelling of 111549411361 in words is "one hundred eleven billion, five hundred forty-nine million, four hundred eleven thousand, three hundred sixty-one".